We introduce a new probing problem: what is the minimum number of cameras at fixed positions necessary and sufficient to reconstruct any strictly convex polygon contained in a disk of radius 1 if cameras only see the silhouette of the polygon? The optimal number only depends on the largest angle α of the polygon. If no two camera tangents overlap, 3π π−α cameras are necessary and sufficient. Ot...

The camera placement problem concerns the placement of a xed number of point-cameras on the integer lattice of d-tuples of integers in order to maximize their visibility. We give a caracterization of optimal conng-urations of size s less than 5 d and use it to compute in time O(s log s) an optimal abstract connguration under the assumption that the visibility of a connguration is computable in ...

This paper studies the impact of camera location and multi-camera fusion with real robots in an urban search and rescue task through two sets of experiments. In the first, we compared a camera with an overhead view to a traditional forward looking camera. In the second, we compared the use of a single forward looking camera to the use of two cameras, one on the front of the robot and one on the...

We present a device for detection of hail dents in passenger cars. For this purpose we have constructed a new multi-camera deflectometric setup for large specular objects. Deflectometric measurements have strict constraints how cameras can be placed – for instance: angular restrictions and distance limitations. An important trait of our system is the static setup – we use a single setup for cam...

Camera placement has an enormous impact on the performance of vision systems, but the best placement to maximize performance depends on the purpose of the system. As a result, this paper focuses largely on the problem of task-specific camera placement. We propose a new camera placement method that optimizes views to provide the highest resolution images of objects and motions in the scene that ...

Most existing camera placement algorithms focus on coverage and/or visibility analysis, which ensures that the object of interest is visible in the camera’s field of view (FOV). According to recent literature, handoff safety margin is introduced to sensor planning so that sufficient overlapped FOVs among adjacent cameras are reserved for successful and smooth target transition. In this paper, w...

| Visual assembly inspection can provide a low cost, accurate, and eecient solution to the automated assembly inspection problem, which is a crucial component of any automated assembly manufacturing process. The performance of such an inspection system is heavily dependent on the placement of the camera and light source(s). This article presents new algorithms that use the CAD model of a nished...